How to construct a DiamondOfNumbers

#include <iostream>
using namespace std;

int main()
{
int Num;

cout << "Enter any number in the range of 1 to 9 : ";
cin >> Num;
if(Num >= 1 && Num <= 9)
{
for(int Y=-Num;Y!=Num;Y++)
{
if(Y!=0)
{
for(int X=1;X!=(Y<0?-Y:Y+1);X++)
printf(" ");
for( X=-(Y<0?Num+Y+1:Num-Y);X!=(Y<0?Num+Y+1:Num-Y);X++)
if(X!=0)
printf("%d",(X<0?-X:X+1));
printf("\n");
}
}
}
else
printf("Sorry, limit exceeded. Try again.");

return 0;
}